Home / 83,412.64-125,138.40-27,255.34

Finding the Fourth Proportional to 83,412.64, 125,138.40 and 27,255.34

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Solution

The fourth proportional to 83,412.64, 125,138.40 and 27,255.34 is: 40,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,412.64 : 125,138.40 = 27,255.34 : x
  2. Step 2: Convert to fraction form
    83,412.64/125,138.40 = 27,255.34/x
  3. Step 3: Cross multiply
    83,412.64x = 125,138.40 × 27,255.34
  4. Step 4: Simplify right side
    83,412.64x = 3,410,689,639.06
  5. Step 5: Solve for x
    x = 3,410,689,639.06/83,412.64
  6. Step 6: Final answer
    x = 40,889.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.